| Drav. | uri | to burn |
| Lat. | urere | to burn |
| Franç. | ortie | nettle (a plant causing burning itches) |
| Alb. | nur | (n prosth.) light, splendour |
| Tadjik | jenàri | red, enàr pomegranate |
| Tadjik | nàrangi | couleur orange |
| Roman. | nârâmziu | orange colour |
| Bulg. | neranzen | orange colour |
| Esp. | naranja | orange (fruit), Port. laranja |
| Franç. | orangé | colour between yellow and red |
| Franç. | orange | fruit with an yellow-red colour |
| Franç.rég. | orange | agaric rouge (a mushroom) |
| Franç. | oronge | a yellow-red mushroom Agaricusaurantiacus |
| Esp. | turungiu | orange colour |
| Ital.: Cesena | budrangon | Rock Thrush, 346 |
| Ital.: Sard. | aurantsu | yellow |
| Ital. | arancio | reddish orange |
| Ital.reg. | picchio arancino | Great Spotted Woodpecker, 273 |
| Ital.reg. | arancino | Firecrest, 388 |
| Ital. | fiorrancino | id. |
| Ital.: Marche | codarancia | Redstart, 347, 348 |
| Franç.rég. | rinso, rincho | Robin, 335 |
| Esp.: Coria | rinseñol | Nightingale, 337 |
| Port. | ronço | Nightingale, 337 |
| Franç.rég. | ransignol | Nightingale, 337 |
| Franç.: Sav. | ransignolë | rhododendron (rusty underside of leaf) |
| Nederl. | ransuil | Barn Owl, 238 |
| Ital. | côdrânz | Redstart, 347, 348 |
| Ital.: Mod. | aranzèn | Firecrest, 388 |
| Ital.: Imole | ranzen | Nightingale, 337 |
| Ital.: Romg. | ranz | rufous |
| Ital.: Bol. | ras | rufous |
| Russian N. | ronza, kuronza | Jay, 290; Siberian Jay, 291 |
| Lith. | raSis, ranSis et var. | Hawfinch, 431, Waxwing, 329, Jay, 290 |
| Sbc. | raSka, razka | Jay, 290 |
| Russian | rassvót | dawn (literally "red glow") |
| Sbc. | razan et var. | Glossy Ibis, 131 or Bar-tailed Godwit, 170 |
| Sorbian | rozka | Robin, 335 |
| Czech | raSka | Robin, 335, Redstart, 347 |
| Pol. | raszka, reszka | Robin, 335 |
| Franç. | rouge | blood colour |
| Franç.: Vosges | rougirou | Robin, 335 |
| Franç.: VS | ròdze | red |
| Cat. | roig | id. |
| Ital.: Sic. | ruggia | id. |
| R.Rom. | ruegen | rust |
| Roman. | ruginâ | id. |
| Esp.: Arag. | rogo, arruego | chestnut horse |
| Lat. | aeruginosus | (borrowing) covered with rust |
| Alb. | vrug | wheat rust |
| Roman. | ruja | rose or other pink flowers |
| Roman. | rujan | reddish |
| Esp. | rojo | rufous |
| Esp.: Arag. | rojiñón | Nightingale, 337 |
| Prov.(a.litt.) | roijad | "sale" (?), FEW 23: 186 |
| Franç.: Sav. | reujé | rose bush |
| Franç.: Périg. | rèuje | spotted with reddish |
| Franç.rég. | reuje | Robin, 335 |
| Ital.: Cal. | coddareza et var. | Redstart, 347, 348 |
| Sbc. | ruzica | pink |
| Russian reg. | ruzica | Redstart, 347 |
| Russian | ryz | red (hair) |
| Russian | ryznja | red (cheeks, lips) |
| Russian reg. | rizeSik | Red-breasted Goose, 35 |
| Kurdish | ruz | day, sun |
| Kurdish | rozawa | West |
| Kurdish | rozalat | East |
| Pers. | ruz | day |
| Pers.: Sivand | ru | day |
| Kurdish | ro | day |